The options "sync", "async", "dirsync", "lazytime", "nolazytime", "mand" and "nomand" make no sense for the cpuset filesystem. If these options are supplied to fsconfig(FSCONFIG_SET_FLAG), then return -EINVAL instead of silently ignoring the option.
Any implementation, such as mount(8) that needs to parse this option without failing should simply ignore the return value from fsconfig(). Signed-off-by: Miklos Szeredi <mszer...@redhat.com> --- kernel/cgroup/cpuset.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index 025f6c6083a3..f6f6b5b44fc3 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -394,7 +394,7 @@ static int cpuset_get_tree(struct fs_context *fc) } static const struct fs_context_operations cpuset_fs_context_ops = { - .parse_param = vfs_parse_sb_flag, + .parse_param = vfs_parse_ro_rw, .get_tree = cpuset_get_tree, }; -- 2.21.0